xref: /freebsd/crypto/heimdal/appl/ftp/ftpd/kauth.c (revision f4f56ff43dbd30930f4b018e39ba2b9abf84551f)
1 /*
2  * Copyright (c) 1995 - 1999, 2003 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include "ftpd_locl.h"
35 
36 RCSID("$Id$");
37 
38 #if defined(KRB5)
39 
40 int do_destroy_tickets = 1;
41 char *k5ccname;
42 
43 #endif
44 
45 #ifdef KRB5
46 
47 static void
48 dest_cc(void)
49 {
50     krb5_context context;
51     krb5_error_code ret;
52     krb5_ccache id;
53 
54     ret = krb5_init_context(&context);
55     if (ret == 0) {
56 	if (k5ccname)
57 	    ret = krb5_cc_resolve(context, k5ccname, &id);
58 	else
59 	    ret = krb5_cc_default (context, &id);
60 	if (ret)
61 	    krb5_free_context(context);
62     }
63     if (ret == 0) {
64 	krb5_cc_destroy(context, id);
65 	krb5_free_context (context);
66     }
67 }
68 #endif
69 
70 #if defined(KRB5)
71 
72 /*
73  * Only destroy if we created the tickets
74  */
75 
76 void
77 cond_kdestroy(void)
78 {
79     if (do_destroy_tickets) {
80 #if KRB5
81 	dest_cc();
82 #endif
83 	do_destroy_tickets = 0;
84     }
85     afsunlog();
86 }
87 
88 void
89 kdestroy(void)
90 {
91 #if KRB5
92     dest_cc();
93 #endif
94     afsunlog();
95     reply(200, "Tickets destroyed");
96 }
97 
98 
99 void
100 afslog(const char *cell, int quiet)
101 {
102     if(k_hasafs()) {
103 #ifdef KRB5
104 	krb5_context context;
105 	krb5_error_code ret;
106 	krb5_ccache id;
107 
108 	ret = krb5_init_context(&context);
109 	if (ret == 0) {
110 	    if (k5ccname)
111 		ret = krb5_cc_resolve(context, k5ccname, &id);
112 	    else
113 		ret = krb5_cc_default(context, &id);
114 	    if (ret)
115 		krb5_free_context(context);
116 	}
117 	if (ret == 0) {
118 	    krb5_afslog(context, id, cell, 0);
119 	    krb5_cc_close (context, id);
120 	    krb5_free_context (context);
121 	}
122 #endif
123 	if (!quiet)
124 	    reply(200, "afslog done");
125     } else {
126 	if (!quiet)
127 	    reply(200, "no AFS present");
128     }
129 }
130 
131 void
132 afsunlog(void)
133 {
134     if(k_hasafs())
135 	k_unlog();
136 }
137 
138 #else
139 int ftpd_afslog_placeholder;
140 #endif /* KRB5 */
141